How to see on board Motherboard Graphics

[kaushik37]

I have Gigabyte 78LMT-USB3 motherboard along with AMD Radeon HD 6450 1 GB DDR3 Sapphire Edition GPU. How can I see my on board graphics memory only, and not the graphics memory of combo of motherboard and GPU?

 

[alexoiu]

Disconnect the graphics card, connect the monitor to the onboard and check if working.